Quiz 07/26/2022

An 8-year-old child with a past medical history of tuberous sclerosis presents urgently to the emergency room with lethargy. Funduscopic examination shows blurring of the optic discs. An MRI is performed and shown below. Which of the following is the most likely cause of the patient’s symptoms?

Which of the following is the mechanism of action for aducanumab?

A 56-year-old man with idiopathic Parkinson’s disease presents to the emergency department for hypertensive emergency and tachycardia. You suspect that this may be an adverse effect related to one of his medications. Patients that are prescribed MAO-B Inhibitors should be counseled on avoiding which of the following?

A patient with end-stage amyotrophic lateralized sclerosis (ALS) presents to the emergency room from a nursing home alone. His vitals show hypoxemia and he appears tachypneic on examination. On examination, he is also paraplegic with significant weakness in the upper extremities and mild dysarthria. His mental status examination appears intact. Between short breaths, he says that he does not wish to be intubated. This is consistent with the end-of-life discussions documented in the outpatient clinic notes. As his hypoxemia worsens his wife arrives at the bedside and with urgency asks you to intubate the patient. What is the most appropriate response?

A 56-year-old female presents to the clinic with right posterior leg pain. On examination, there is decreased sensation of the right posterior calf and weakness in right ankle plantarflexion. EMG testing shows fibrillations of the gastrocnemius and gluteus maximus muscles. EMG testing of the tibialis anterior, gluteus medius, and tensor fascia lata were normal. What is the most likely etiology of this patient’s symptoms?

Which of the following is not one of the absolute exclusionary criteria for tissue plasminogen activator (tPA)?

The usage of bupropion increases the risk of which of the following?

What is the anatomical structure marked by the blue arrow?

A 51-year-old woman with a past medical history of migraines and irritable bowel syndrome comes to the physician because of abnormal shaking of both hands for the past two months. The shaking improves after two glasses of wine. Examination shows symmetric hand tremors that worsen when the patient reaches for objects in front of her. What is the mechanism of action of the most appropriate first-line treatment?

Which of the following is most likely to be damaged by carbon monoxide toxicity?